/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataCacheRecord.h
Append the cache record to an existing package and writer for e.g. a batch of records.
void Save ( [FCbPackage](API\Runtime\Core\Serialization\FCbPackage) & Attachments, [FCbWriter](API\Runtime\Core\Serialization\FCbWriter) & Writer ) const